Drewhefner
Active Member
Yellow & brown spots starting to appear on my bottom leaves any help ?
Cal mag deficiency?
- Thread starter Drewhefner
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Sticky Bandit
Well-Known Member
If it's just the bottom leaves I wouldn't worry too much assuming your pH is within limits
You can check the soil dampness by lifting the pot to check if it's caused by over watering
You can also foliar spray with Epsom salt @1 heaped teaspoon/gallon which is pretty safe to help boost magnesium levels needed for LED lighting. I also make calcium acetate (I think it is) with vinegar and crushed eggshells and add a teaspoon/gallon to my nutrient mix once or twice a week
What do the whole plants look like?
You can check the soil dampness by lifting the pot to check if it's caused by over watering
You can also foliar spray with Epsom salt @1 heaped teaspoon/gallon which is pretty safe to help boost magnesium levels needed for LED lighting. I also make calcium acetate (I think it is) with vinegar and crushed eggshells and add a teaspoon/gallon to my nutrient mix once or twice a week
What do the whole plants look like?
Drewhefner
Active Member
It won’t let me post the pics of them right now
Drewhefner
Active Member
Here we go this is them now
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Sticky Bandit
Well-Known Member
They look pretty healthy apart from the leaf coloring, a foliar spray with Epsom Salt won't hurt and may fix your issue
There are a number of possible contributing factors like air flow, soil/medium, pH, lights, temp, humidity etc
Drewhefner
Active Member
Where would I get foliar spray with epsom salts from ? Any recommendations on which specificThey look pretty healthy apart from the leaf coloring, a foliar spray with Epsom Salt won't hurt and may fix your issue
There are a number of possible contributing factors like air flow, soil/medium, pH, lights, temp, humidity etc
Burndoggin
Well-Known Member
You make it yourself, in a spray bottle. Spray at lights off.
1tsp per gallon.
I add it with every watering.
1tsp per gallon.
I add it with every watering.
Sticky Bandit
Well-Known Member
This is exactly what I do
I read you can go up to 1 tablespoon/gallon for initial spray but not too much on chunky buds as water sprays can cause rot
Epsom salt, also known as magnesium sulfate can be purchased at your local supermarket, my wife sometimes uses a whole pack in the bath as bath salts
Drewhefner
Active Member
Okay I will be trying this thank youThis is exactly what I do
I read you can go up to 1 tablespoon/gallon for initial spray but not too much on chunky buds as water sprays can cause rot
Epsom salt, also known as magnesium sulfate can be purchased at your local supermarket, my wife sometimes uses a whole pack in the bath as bath salts
Drewhefner
Active Member
Do I spray or water them ?This is exactly what I do
I read you can go up to 1 tablespoon/gallon for initial spray but not too much on chunky buds as water sprays can cause rot
Epsom salt, also known as magnesium sulfate can be purchased at your local supermarket, my wife sometimes uses a whole pack in the bath as bath salts
Sticky Bandit
Well-Known Member
I believe spray is faster acting and won't risk lockout at the roots
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Drewhefner
Active Member
Okay I’ll give it a shot tomorrow and see how it goes
coreywebster
Well-Known Member
Magnesium sulphate (Epsom salt)from a garden or agricultural shop will cost you almost nothing.
But if you buy it anywhere else make sure its not fragranced.
But if you buy it anywhere else make sure its not fragranced.
Drewhefner
Active Member
This the one I picked up to be exact, will this be fine ?
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coreywebster
Well-Known Member
Yeah, doesn't say scented so itl be fine.
Lasts ages and should be fine for your minimal use.
Drewhefner
Active Member
how often should I spray them down with the Epsom salt?
Sticky Bandit
Well-Known Member
I spray 3 or 4 times/week although daily is ok
Drewhefner
Active Member
S
So foliar spray hasn’t been working with the Epsom salts, my bottom leaves are still yellowing with brown spots… should I try watering them with the Epsom salt?
Sticky Bandit
Well-Known Member
Are you keeping the moisture level consistent by checking the pot weight? That could be a sign of overly wet roots
Do you have a pic? I had some trouble with watering and changed to hempy buckets with coco to simplify matters, never looked back
Do you have a pic? I had some trouble with watering and changed to hempy buckets with coco to simplify matters, never looked back
Drewhefner
Active Member
Yes I have making sure it’s not heavy before I water and soils dry and it’s happening with my coco and fox farm soil